[RFC PATCH 2/2] ARM: SMP support for mach-virt

Will Deacon will.deacon at arm.com
Tue Dec 11 11:09:56 EST 2012


On Tue, Dec 11, 2012 at 04:04:20PM +0000, Stefano Stabellini wrote:
> Hi!

Hi Stefano,

> Sorry for taking so long to reply but I admit I missed the thread
> entirely until now. I would appreciate if you could CC
> xen-devel at lists.xen.org and/or me for virtualization related
> discussions.

I did CC xen-arm at lists.xen.org, but you've dropped that list in your
reply...

> On the Xen side there are not going to be any problems related to SMP
> and holding pens, because secondary CPUs only come into existence after
> the first CPU calls the HYPERVISOR_vcpu_op hypercall (still missing on
> ARM).

Ok. Would you be willing/able to wrap this in a PSCI interface when you do
add SMP support for ARM?

Will



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